Forms Data Controls :: Trying To Add The Checked Rows Into The Database By Looping Through
May 9, 2010
I am trying to add the checked rows into the database by looping through but im getting this error:
Object reference not set to an instance of an object.
Description:
An unhandled exception occurred during the execution of the current web request. review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.
Source Error:
[Code]....
Heres my add click event:
[Code]....
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Mar 4, 2010
I have situation where I have to show checked CheckBox in a GridView. I have three tables
1) Menu Items ( Fields: menuID, menuName, menuLink, .....)
2) User Types (Fields: userTypeID, userTypeName, ...)
3) User Menus (Field: menuID, userTypeID )
I have a screen to add new Menu Items where I am showing a Grid That has two columns
1) CheckBox and
2) User Type
I have to check CheckBox in order to Link that User Type with the Menu Itme. I am done with Add Screen. Here is the Code:
(aspx)
<asp:GridView
ID="gridView_UserTypes"
runat="server"
AutoGenerateColumns="False"
DataKeyNames="userTypeID"
Width="60%"
EmptyDataText="">
<HeaderStyle
CssClass="gridHeader"
Wrap="false"
/>
<AlternatingRowStyle
CssClass="gridAlturnateRow"
/>
<RowStyle
CssClass="gridRow"
/>
<Columns>
<asp:CheckBoxField
DataField="userTypeChecked"
HeaderText="Select"
ReadOnly="false"
Visible="true"
/>
<asp:TemplateField
HeaderText="Select">
<ItemTemplate>
<asp:CheckBox
ID="userTypeSelector"
runat="server"
/>
</ItemTemplate>
<ItemStyle
HorizontalAlign="Center"></ItemStyle>
</asp:TemplateField>
<asp:BoundField
ItemStyle-HorizontalAlign="Left"
DataField="userTypeName"
HeaderText="User Types"
HeaderStyle-Wrap="false"
ReadOnly="True"
SortExpression="userTypeID">
<ItemStyle
HorizontalAlign="Left"></ItemStyle>
</asp:BoundField>
</Columns>
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foreach (GridViewRow row in gridView_UserTypes.Rows)
{
// Access the CheckBox
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if (cb != null && cb.Checked)
{
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int userTypeID = Convert.ToInt32(gridView_UserTypes.DataKeys[row.RowIndex].Value);
if (selectedUserTypeIDs == "")
{
selectedUserTypeIDs = userTypeID.ToString();
}
else
{
selectedUserTypeIDs = selectedUserTypeIDs + "," + userTypeID.ToString();
}
userTypeCount++;
}
}
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[code].....
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cmd.Connection = myCon
myCon.Open()
cmd.ExecuteNonQuery()
myCon.Close()
End If
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I have as script that runs a stored procedure to fetch a comment along with it's id. There are multiple comments and I want to display them but I am having problem with display all the records. Here is my code:
Using con
Using sda As New SqlDataAdapter()
Try
cmd.Connection = con
Catch ex As Exception
Response.Write("Error" & ex.Message)
[code]...
How do I make it so that the returned results will be like this:
6 First Comment
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I am transferring selected rows from 1st gridview to 2nd gridview and removing rows from second gridview when I deselect row from 1st gridview using Javascript and it is working fine. But when I am deselecting the same row 2nd time it is not removing from 2nd gridview. html and javascript
<head runat="server">
<title></title>
<script type="text/javascript" language="javascript">
function AddRow(lnk) {
var rw = lnk.parentNode.parentNode;
[code]...
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May 7, 2015
How To get Datalist Checkbox Select Item To The Another Datalist on click CheckBox
Code Like
<form id="form1" runat="server">
<div>
<h2 style="background-color: #CCC; font-size: 16px; font-family: Arial, Helvetica, sans-serif; font-weight: 400;" class="heading">Brand</h2>
<asp:DataList ID="DataList5" runat="server" Style="font-weight: 700; color: #CC33FF; background-color: #66FFCC;" Height="100px" Width="122px">
<ItemTemplate>
[code]....
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<%# Eval("add_1") & ","%>
<%# Eval("Add_2") & ","%>
<%# Eval("Add_3") & ","%>
OUTPUT:-
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I've a gridview with 6 coloums. First col is dropdown list and rest are text boxes.aspx page looks like this
[Code]....
I've a created a class and bounded to grid view in my Business LayerThe dropdown list was bounded to another table by using gvExpense_RowDataBound eventNo.of rows in gridview depends on no. of rows in expensetype table
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check the VB behind code for any syntax errors.Unable to add new rows of data to a database using the DataGrid control.Compilation Error message is located at http://cforedu.com:View snap shot images of each line error at http://cforedu.com/snap.pdfThe VB code behind reads (revision 1.3):
[Code]....
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